Not directly laser related, but maybe usefull.
I have a few medical grade toroidal mains isolation transformers. Made by Avel Lindberg in the UK. All but one are 240 - 240V (with one tap I believe 220V). One is 110 - 110V. Rated at at least 3 Amps. Dimensions are approx 140 x 70 mm, fixing by two 6mm screws. I don't want anything for them, but they are rather heavy - 5.0Kg's each, so would need to cover carriage. If anybody is interested, let me know. I can provide pics etc if needed. Regards, David.